CONTROLLING METHOD FOR INTERNAL PRESSURE OF CONTINUOUS ANNEALING BOX TYPE FURNACE FOR STRIP COIL

摘要

PURPOSE:To prevent the intrusion of oxygen so as to prevent the oxidation of strip coil surface by charging the strip coil into a box type furnace described in the title where a cooling box is installed at the adjacent heating furnace beyond an intermediate door, and by controlling the pressure inside the heating furance and the cooling box in an atmosphere of N2.